Auth

Login with Twitter

To enable Twitter Auth for your project, you need to set up a Twitter OAuth application and add the application credentials in the Supabase Dashboard.

Overview

Setting up Twitter logins for your application consists of 3 parts:

Access your Twitter Developer account

Twitter Developer Portal.

Find your callback URL

The next step requires a callback URL, which looks like this: https://<project-ref>.supabase.co/auth/v1/callback

  • Go to your Supabase Project Dashboard
  • Click on the Authentication icon in the left sidebar
  • Click on Providers under the Configuration section
  • Click on Twitter from the accordion list to expand and you'll find your Callback URL, you can click Copy to copy it to the clipboard

Create a Twitter OAuth app

  • Click + Create Project.
    • Enter your project name, click Next.
    • Select your use case, click Next.
    • Enter a description for your project, click Next.
    • Enter a name for your app, click Next.
    • Copy and save your API Key (this is your client_id).
    • Copy and save your API Secret Key (this is your client_secret).
    • Click on App settings to proceed to next steps.
  • At the bottom, you will find User authentication settings. Click on Set up.
  • Under User authentication settings, you can configure App permissions.
  • Make sure you turn ON Request email from users.
  • Select Web App... as the Type of App.
  • Under App info configure the following.
    • Enter your Callback URL. Check the Find your callback URL section above to learn how to obtain your callback URL.
    • Enter your Website URL (tip: try http://127.0.0.1:port or http://www.localhost:port during development)
    • Enter your Terms of service URL.
    • Enter your Privacy policy URL.
  • Click Save.

Enter your Twitter credentials into your Supabase project

  • Go to your Supabase Project Dashboard
  • In the left sidebar, click the Authentication icon (near the top)
  • Click on Providers under the Configuration section
  • Click on Twitter from the accordion list to expand and turn Twitter Enabled to ON
  • Enter your Twitter Client ID and Twitter Client Secret saved in the previous step
  • Click Save

Add login code to your client app

When your user signs in, call signInWithOAuth() with twitter as the provider:

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async function signInWithTwitter() {  const { data, error } = await supabase.auth.signInWithOAuth({    provider: 'twitter',  })}

For a PKCE flow, for example in Server-Side Auth, you need an extra step to handle the code exchange. When calling signInWithOAuth, provide a redirectTo URL which points to a callback route. This redirect URL should be added to your redirect allow list.

In the browser, signInWithOAuth automatically redirects to the OAuth provider's authentication endpoint, which then redirects to your endpoint.

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await supabase.auth.signInWithOAuth({  provider,  options: {    redirectTo: `http://example.com/auth/callback`,  },})

At the callback endpoint, handle the code exchange to save the user session.

Create a new file at app/auth/callback/route.ts and populate with the following:

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import { NextResponse } from 'next/server'// The client you created from the Server-Side Auth instructionsimport { createClient } from '@/utils/supabase/server'export async function GET(request: Request) {  const { searchParams, origin } = new URL(request.url)  const code = searchParams.get('code')  // if "next" is in param, use it as the redirect URL  const next = searchParams.get('next') ?? '/'  if (code) {    const supabase = await createClient()    const { error } = await supabase.auth.exchangeCodeForSession(code)    if (!error) {      const forwardedHost = request.headers.get('x-forwarded-host') // original origin before load balancer      const isLocalEnv = process.env.NODE_ENV === 'development'      if (isLocalEnv) {        // we can be sure that there is no load balancer in between, so no need to watch for X-Forwarded-Host        return NextResponse.redirect(`${origin}${next}`)      } else if (forwardedHost) {        return NextResponse.redirect(`https://${forwardedHost}${next}`)      } else {        return NextResponse.redirect(`${origin}${next}`)      }    }  }  // return the user to an error page with instructions  return NextResponse.redirect(`${origin}/auth/auth-code-error`)}

When your user signs out, call signOut() to remove them from the browser session and any objects from localStorage:

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async function signOut() {  const { error } = await supabase.auth.signOut()}

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